North Korea Tested Components of New ICBM in February, March Launches, U.S. Officials Say

WASHINGTON—Two recent North Korean missile launches tested components of a new intercontinental missile technique that if totally produced could strike the U.S. or its allies, officials explained.

The missile launches, which took put on Feb. 26 and March 4, could foreshadow a North Korean examination of the missile at its comprehensive intercontinental vary, an official claimed.